/* 时阅智型 · AI 技能商城 — 与官网同源的浅色品牌风 */
:root{
  --ink:#0b1220; --muted:#5d6878; --blue:#0768e6; --cyan:#10bce8;
  --paper:#f5f7fa; --line:#e3e8ef; --gold:#e8bb5a; --gold-deep:#c9951f;
  --wx:#07c160; --maxw:1180px;
}
*{box-sizing:border-box}
@media(prefers-reduced-motion:no-preference){html{scroll-behavior:smooth}}
body{margin:0;color:var(--ink);background:#fff;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;line-height:1.6;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
img{display:block;max-width:100%}
.shell{width:min(var(--maxw),calc(100% - 48px));margin-inline:auto}
.kicker{color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.14em}
.muted{color:var(--muted)}

/* ===== 顶部通栏 ===== */
.topbar{background:var(--ink);color:#fff;font-size:13px;text-align:center;padding:9px 16px}
.topbar b{color:#ffd77a}

/* ===== 头部 ===== */
.site-header{position:sticky;top:0;z-index:50;height:76px;padding:0 max(24px,calc((100vw - 1240px)/2));display:flex;align-items:center;gap:30px;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(224,229,236,.85)}
.brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
.brand-logo{width:auto;height:40px;object-fit:contain}
.brand-logo+small{padding-left:13px;border-left:1px solid var(--line);font-size:11px;letter-spacing:.1em;white-space:nowrap;color:#77808d}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:22px;flex:1;font-size:14px;color:#394454}
.desktop-nav a:hover{color:var(--blue)}
.header-cta{display:inline-flex;align-items:center;gap:8px;padding:11px 17px;background:var(--ink);color:#fff;border-radius:999px;font-size:13px;font-weight:700;border:0;cursor:pointer;transition:.18s;white-space:nowrap}
.header-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(11,18,32,.22)}
.mobile-menu{display:none}

/* ===== 按钮 ===== */
.button{border:0;display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:54px;padding:0 30px;border-radius:15px;font-size:15px;font-weight:800;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;white-space:nowrap}
.button.primary{color:#fff;background:linear-gradient(100deg,#006de9,#008ff1);box-shadow:0 14px 30px rgba(0,112,230,.22);position:relative;overflow:hidden}
.button.primary:hover{transform:translateY(-2px);box-shadow:0 20px 38px rgba(0,112,230,.3)}
.button.primary:after{content:"";position:absolute;top:0;bottom:0;left:-60%;width:44%;background:linear-gradient(100deg,transparent,rgba(255,255,255,.45),transparent);transform:skewX(-18deg);opacity:0}
.button.primary:hover:after{opacity:1;animation:sheen 1.05s cubic-bezier(.4,0,.2,1)}
@keyframes sheen{from{left:-60%}to{left:120%}}
.button.gold{color:#2a1d00;background:linear-gradient(100deg,#ffd77a,#e8bb5a);box-shadow:0 14px 30px rgba(232,187,90,.32)}
.button.gold:hover{transform:translateY(-2px);box-shadow:0 20px 38px rgba(232,187,90,.45)}
.button.ghost{border:1px solid #cdd9e8;color:#1265bf;background:#fff}
.button.ghost:hover{transform:translateY(-2px);border-color:#93c0f2;box-shadow:0 16px 30px rgba(18,101,191,.13)}
.button.big{min-height:60px;padding:0 38px;font-size:17px}

/* ===== 机器人头像 ===== */
.ava{width:54px;height:54px;flex:none;filter:drop-shadow(0 6px 10px rgba(12,30,60,.14))}
.ava.mini{width:34px;height:34px;filter:drop-shadow(0 3px 6px rgba(12,30,60,.14))}
.ava.big{width:88px;height:88px}

/* ===== Hero ===== */
.hero{position:relative;padding-block:84px 0;background:radial-gradient(125% 92% at 50% 0%,#eff5ff,#fff 60%);overflow:hidden}
.hero-copy{max-width:960px;text-align:center;margin-inline:auto;padding-bottom:46px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border:1px solid #d5e6ff;background:#f2f7ff;border-radius:999px;color:var(--blue);font-size:13px;font-weight:800;letter-spacing:.1em}
.hero h1{margin:24px 0 18px;font-size:clamp(42px,5.2vw,72px);line-height:1.06;letter-spacing:-.05em;word-break:keep-all}
.hero h1 .line{display:block}
.hero h1 .nb{white-space:nowrap}
.hero h1 .accent{display:inline-block;background:linear-gradient(90deg,var(--blue),#7357f4,#f0389d);color:transparent;background-clip:text;-webkit-background-clip:text}
/* keep-all：中文只在顿号/逗号/空格处换行，避免「电/商」被拆开；balance：手机上两行时长度均衡，不留单字孤行 */
.hero-vision{margin:0 0 12px;font-size:clamp(19px,2vw,25px);font-weight:800;line-height:1.4;letter-spacing:-.02em;word-break:keep-all;text-wrap:balance}
.hero-vision b{color:var(--blue)}
.hero-summary{max-width:720px;margin:0 auto;color:var(--muted);font-size:17px;line-height:1.9}
.hero-actions{display:flex;justify-content:center;gap:14px;margin:34px 0 0;flex-wrap:wrap}
.hero-price{display:inline-flex;align-items:baseline;gap:12px;margin-top:30px;padding:12px 22px;border-radius:999px;background:#fff;border:1px solid var(--line);box-shadow:0 14px 34px rgba(12,55,110,.08)}
.hero-price .now{font-size:34px;font-weight:900;color:var(--blue);letter-spacing:-.03em}
.hero-price .now small{font-size:16px;font-weight:800}
.hero-price s,.hero-price .ref{color:#98a3b1;font-size:15px;font-weight:600}
.hero-price em{font-style:normal;font-size:13px;font-weight:800;color:#b0562c;background:#fff1ea;padding:4px 9px;border-radius:8px}

/* 首屏滚动头像带 */
.hero-strip{position:relative;padding:18px 0 34px;overflow:hidden;-webkit-mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent);mask-image:linear-gradient(90deg,transparent,#000 10%,#000 90%,transparent)}
.strip-track{display:flex;gap:12px;width:max-content}
.strip-item{display:inline-flex;align-items:center;gap:10px;padding:8px 16px 8px 9px;border-radius:999px;border:1px solid var(--line);background:#fff;box-shadow:0 10px 24px rgba(12,55,110,.07);font-size:13.5px;font-weight:700;color:#2b3645;cursor:pointer;white-space:nowrap;transition:transform .18s ease,border-color .18s ease}
.strip-item:hover{transform:translateY(-2px);border-color:var(--c)}
.strip-item span{max-width:200px;overflow:hidden;text-overflow:ellipsis}

/* 亮点卡 */
.highlights{padding-block:10px 20px}
.brand-cards{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.brand-cards article{min-height:160px;padding:26px;border:1px solid var(--line);border-radius:22px;background:linear-gradient(160deg,#fff,#f6f9fd);display:grid;grid-template-rows:auto 1fr;gap:14px;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease}
.brand-cards article:hover{transform:translateY(-4px);border-color:#a9cef7;box-shadow:0 20px 40px rgba(12,55,110,.1)}
.brand-cards article>span{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--blue);font-weight:800}
.brand-cards article>span:before{content:"";width:15px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.brand-cards strong{align-self:start;font-size:30px;line-height:1.1;letter-spacing:-.03em}
.brand-cards strong small{display:block;margin-top:8px;font-size:14px;font-weight:600;color:var(--muted);letter-spacing:0}
.brand-cards strong small b{color:var(--ink)}

/* ===== 通用区块 ===== */
.section{padding-block:96px}
.section-heading h2{margin:10px 0 0;font-size:clamp(34px,4vw,54px);line-height:1.12;letter-spacing:-.04em}
.section-heading h2 b{color:var(--blue)}
.centered{text-align:center;max-width:800px;margin:0 auto 48px}
.centered.wide{max-width:920px}
.centered p{margin-top:16px;color:var(--muted);font-size:17px;line-height:1.9}
.grey{background:#f3f5f8;border-block:1px solid #edf0f4}

/* ===== 价值对比 ===== */
.compare{display:grid;grid-template-columns:1fr 1.15fr;gap:18px;align-items:stretch}
.compare-card{padding:30px;border-radius:24px;border:1px solid var(--line);background:#fff}
.compare-card h3{margin:0 0 6px;font-size:22px}
.compare-card .sub{margin:0 0 18px;color:var(--muted);font-size:14px}
.compare-card ul{margin:0;padding:0;list-style:none;display:grid;gap:11px}
.compare-card li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#3f4d5e;line-height:1.6}
.compare-card li i{flex:none;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;font-size:12px;font-style:normal;font-weight:900;margin-top:2px}
.compare-card.old li i{background:#f3f5f8;color:#98a3b1}
.compare-card.new{background:linear-gradient(150deg,#fff,#eef5ff);border-color:#bcd7f6;box-shadow:0 20px 44px rgba(12,55,110,.12);position:relative}
.compare-card.new li i{background:#e3f6ec;color:#05a85e}
.compare-card.new .ribbon{position:absolute;top:20px;right:20px;padding:6px 12px;border-radius:999px;background:var(--ink);color:#ffd77a;font-size:12px;font-weight:800}
.compare-card .price-line{display:flex;align-items:baseline;gap:12px;margin-top:22px;padding-top:20px;border-top:1px solid #e8ecf2}
.compare-card .price-line strong{font-size:40px;color:var(--blue);letter-spacing:-.03em}
.compare-card .price-line s{color:#98a3b1;font-size:15px}

/* ===== 分类总览 ===== */
.catalog{display:grid;gap:34px}
.cat-group-head{display:flex;align-items:center;gap:14px;margin-bottom:14px;flex-wrap:wrap}
.cat-group-head h3{margin:0;font-size:22px;letter-spacing:-.02em}
.cat-group-no{padding:5px 11px;border-radius:999px;background:var(--ink);color:#ffd77a;font-size:12px;font-weight:800;letter-spacing:.08em}
.cat-group-sum{color:var(--muted);font-size:13.5px;font-weight:600}
.cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.cat-card{position:relative;display:grid;grid-template-columns:1fr auto;grid-template-areas:"num count" "avas avas" "name name" "blurb blurb" "go go";align-content:start;gap:6px;text-align:left;padding:18px 18px 16px;border:1px solid var(--line);border-radius:20px;background:#fff;cursor:pointer;overflow:hidden;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;color:var(--ink)}
.cat-card:before{content:"";position:absolute;inset:0 auto 0 0;width:5px;background:var(--c)}
.cat-card:after{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;background:var(--cl);pointer-events:none}
.cat-card:hover{transform:translateY(-4px);border-color:var(--c);box-shadow:0 20px 40px rgba(12,55,110,.12)}
.cat-num{grid-area:num;font-size:13px;font-weight:900;color:var(--c);letter-spacing:.06em}
.cat-count{grid-area:count;position:relative;z-index:1;font-size:12px;font-weight:800;color:var(--muted);background:#f3f5f8;padding:3px 9px;border-radius:999px}
.cat-avas{grid-area:avas;display:flex;align-items:center;margin:6px 0 4px}
.cat-avas .ava.mini{width:38px;height:38px;margin-right:-8px;background:#fff;border-radius:50%;padding:2px}
.cat-avas i{margin-left:14px;font-style:normal;font-size:12px;font-weight:800;color:var(--c);background:var(--cl);padding:3px 8px;border-radius:999px}
.cat-card strong{grid-area:name;font-size:17px;line-height:1.35;letter-spacing:-.01em}
.cat-card small{grid-area:blurb;color:var(--muted);font-size:12.5px;line-height:1.65;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.cat-card em{grid-area:go;margin-top:6px;font-style:normal;font-size:12.5px;font-weight:800;color:var(--c);opacity:.85}
.cat-grid.slim{grid-template-columns:1fr}
.cat-grid.cols2{grid-template-columns:repeat(2,1fr)}
.cat-grid.cols3{grid-template-columns:repeat(3,1fr)}
.cat-card.slim{grid-template-columns:auto auto 1fr auto auto;grid-template-areas:"num avas name blurb go" "count avas name blurb go";align-items:center;column-gap:18px;row-gap:2px;padding:14px 22px}
.cat-card.slim .cat-avas{margin:0}
.cat-card.slim .cat-count{justify-self:start}
.cat-card.slim small{-webkit-line-clamp:1}
.cat-card.slim em{margin:0}

/* ===== 技能货架 ===== */
.store-head{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:end;margin-bottom:28px}
.store-head p{margin:0;color:var(--muted);font-size:16px;line-height:1.85}
.store-head p b{color:var(--ink)}
.tabs{display:flex;gap:4px;flex-wrap:wrap;padding:6px;border-radius:18px;background:#fff;border:1px solid var(--line);margin-bottom:16px}
.tab{border:0;background:none;padding:9px 13px;border-radius:12px;font-size:13.5px;font-weight:800;color:#3f4d5e;cursor:pointer;transition:.18s;display:inline-flex;align-items:center;gap:6px;white-space:nowrap}
.tab .c{font-size:11px;font-weight:900;color:#98a3b1}
.tab:hover{background:#f3f5f8;color:var(--blue)}
.tab.active{background:var(--ink);color:#fff}
.tab.active .c{color:#ffd77a}
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:14px}
.search{display:flex;align-items:center;gap:10px;border:1px solid #dce2e9;border-radius:14px;padding:11px 14px 11px 16px;background:#fff;flex:1;min-width:280px;max-width:620px;transition:.18s}
.search:focus-within{border-color:#57a8f8;box-shadow:0 0 0 3px rgba(54,151,247,.12)}
.search input{flex:1;border:0;outline:0;background:none;font-size:15px;color:var(--ink);min-width:0;-webkit-appearance:none;appearance:none}
.search input::-webkit-search-cancel-button,.search input::-webkit-search-decoration{-webkit-appearance:none;appearance:none}
.search input::placeholder{color:#98a3b1}
.search svg{color:var(--blue);flex:none}
.search #clearSearch{display:none;align-items:center;border:0;background:#f3f5f8;color:#5d6878;font-size:12px;font-weight:800;padding:6px 10px;border-radius:999px;cursor:pointer}
.result-bar{color:var(--muted);font-size:13.5px}
.result-bar b{color:var(--ink)}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;font-weight:700;cursor:pointer;transition:border-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease}
.chip .dot{width:8px;height:8px;border-radius:50%;background:var(--c,var(--blue))}
.chip .c{color:var(--blue);font-size:11px;font-weight:900}
.chip:hover{border-color:var(--c,#9cc6f5);color:var(--c,var(--blue));transform:translateY(-2px);box-shadow:0 10px 22px rgba(12,55,110,.09)}
.chip.active{background:var(--ink);color:#fff;border-color:var(--ink)}
.chip.active .c{color:#ffd77a}

.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;margin-top:22px}
.card{position:relative;display:flex;flex-direction:column;padding:20px 20px 16px;border:1px solid #dfe5ec;border-radius:22px;background:#fff;overflow:hidden;box-shadow:0 10px 28px rgba(29,40,58,.04);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;cursor:pointer}
.card:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 100% 0%,rgba(0,126,238,.08),transparent 40%);pointer-events:none}
.card:hover,.card:focus-visible{transform:translateY(-4px);border-color:var(--c,#a9cef7);box-shadow:0 20px 40px rgba(12,55,110,.12);outline:0}
.card-top{display:flex;align-items:flex-start;gap:12px;margin-bottom:12px}
.card-meta{display:grid;gap:6px;justify-items:start;padding-top:2px;min-width:0}
.card-cat{display:inline-block;max-width:100%;font-size:11.5px;font-weight:800;color:var(--c);background:var(--cl);padding:3px 9px;border-radius:999px;letter-spacing:.02em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-no{color:#9aa5b2;font-size:12px;font-weight:800}
.card h4{margin:0 0 7px;font-size:16.5px;line-height:1.4;letter-spacing:-.01em;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.tags{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.tags i{font-style:normal;font-size:11px;font-weight:700;color:#4b5a6c;background:#f3f5f8;padding:3px 8px;border-radius:7px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;padding-top:13px;border-top:1px solid #e8ecf2}
.card-foot .inc{display:inline-flex;align-items:center;gap:5px;color:#05a85e;font-size:12px;font-weight:800;white-space:nowrap}
.card-foot .acts{display:inline-flex;gap:6px}
.card-foot .detail-btn,.card-foot .get{border:1px solid #cdd9e8;background:#fff;color:#1265bf;font-size:12.5px;font-weight:800;padding:6px 12px;border-radius:999px;cursor:pointer;transition:.18s}
.card-foot .detail-btn{color:#4b5a6c}
.card-foot .detail-btn:hover{border-color:#9cc6f5;color:var(--blue)}
.card-foot .get:hover{background:var(--blue);border-color:var(--blue);color:#fff}
.more-wrap{text-align:center;margin-top:30px}
.empty{grid-column:1/-1;padding:60px 0;text-align:center;color:var(--muted)}

/* ===== 适合谁 ===== */
.who-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.who-card{display:grid;align-content:start;gap:8px;padding:24px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(150deg,#fff,#f6f9fd);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.who-card:hover{transform:translateY(-3px);border-color:#9cc6f5;box-shadow:0 18px 36px rgba(12,55,110,.1)}
.who-card em{color:var(--blue);font-size:13px;font-style:normal;font-weight:800}
.who-card strong{font-size:19px;line-height:1.4}
.who-card p{margin:0;color:var(--muted);font-size:13.5px;line-height:1.7}

/* ===== 流程 ===== */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.step{padding:26px;border:1px solid var(--line);border-radius:22px;background:#fff}
.step .n{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:11px;background:var(--ink);color:#ffd77a;font-weight:900;font-size:14px}
.step h4{margin:16px 0 6px;font-size:18px}
.step p{margin:0;color:var(--muted);font-size:14px;line-height:1.7}

/* ===== FAQ ===== */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq details{border:1px solid var(--line);border-radius:18px;background:#fff;padding:0 22px}
.faq summary{list-style:none;cursor:pointer;padding:18px 0;font-weight:800;font-size:15.5px;display:flex;justify-content:space-between;gap:16px}
.faq summary::-webkit-details-marker{display:none}
.faq summary:after{content:"+";color:var(--blue);font-weight:900}
.faq details[open] summary:after{content:"−"}
.faq details p{margin:0;padding:0 0 18px;color:var(--muted);font-size:14px;line-height:1.8}
.faq details p b{color:var(--ink)}

/* ===== 底部大CTA（深色） ===== */
.cta-dark{position:relative;padding-block:96px;color:#fff;background:#0a1424;background-image:radial-gradient(900px 400px at 80% 0%,rgba(7,104,230,.35),transparent 60%)}
.cta-dark .kicker{color:#4bc7ff}
.cta-dark h2{margin:12px 0 14px;font-size:clamp(34px,4vw,56px);line-height:1.1;letter-spacing:-.04em}
.cta-dark h2 .accent{background:linear-gradient(90deg,#4bc7ff,#ffd77a);color:transparent;background-clip:text;-webkit-background-clip:text}
.cta-dark p{margin:0;color:#a9b6c7;font-size:17px;line-height:1.85;max-width:640px}
.cta-row{display:flex;gap:40px;align-items:center;justify-content:space-between;flex-wrap:wrap}
.cta-pricebox{padding:28px 32px;border-radius:24px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);text-align:center;min-width:280px}
.cta-pricebox .p{font-size:58px;font-weight:900;line-height:1;color:#ffd77a;letter-spacing:-.03em}
.cta-pricebox .p small{font-size:20px;color:#fff;font-weight:800}
.cta-pricebox s,.cta-pricebox .ref{display:block;margin-top:8px;color:#8796aa;font-size:15px}
.cta-pricebox .button{margin-top:18px;width:100%}

/* ===== 页脚 ===== */
footer{position:relative;padding:60px 24px 40px;background:#07111f;color:#fff}
.footer-inner{position:relative;max-width:1180px;margin:auto;display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:30px;align-items:center}
.footer-brand{display:inline-flex;align-items:center;gap:11px}
.footer-brand .brand-logo{height:44px}
.footer-brand small{padding-left:13px;border-left:1px solid rgba(255,255,255,.22);color:#8796aa;font-size:11px;letter-spacing:.1em}
.footer-inner>p{margin:0;color:#a7b3c3;font-size:13px;line-height:1.7}
.footer-inner>div:last-child{display:grid;text-align:right;gap:8px;font-size:12px;color:#9eabbb}
.footer-inner a{color:inherit;text-decoration:none}
.footer-inner a:hover{color:#fff;text-decoration:underline}

/* ===== 弹窗通用 ===== */
.modal-mask{position:fixed;inset:0;z-index:100;background:rgba(5,12,24,.62);backdrop-filter:blur(8px);display:none;align-items:center;justify-content:center;padding:20px}
.modal-mask.show{display:flex}
.modal{background:#fff;border-radius:28px;max-width:600px;width:100%;padding:34px;position:relative;box-shadow:0 30px 80px rgba(8,22,43,.35);max-height:92vh;overflow:auto;color:var(--ink)}
.modal .x{position:absolute;top:16px;right:18px;width:38px;height:38px;border-radius:50%;border:1px solid var(--line);background:#fff;color:#394454;font-size:22px;cursor:pointer;display:grid;place-items:center;z-index:2}
.modal .x:hover{background:#f3f5f8}
.modal h3{margin:0;font-size:24px;text-align:center;letter-spacing:-.02em}

/* 技能详情弹窗 */
.modal.detail{max-width:700px;padding:30px 32px 26px}
.d-head{display:flex;gap:18px;align-items:flex-start;padding-right:36px}
.d-head>div{min-width:0}
.d-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.d-head h3{text-align:left;font-size:24px;line-height:1.3;word-break:break-word}
.d-alias{margin-top:4px;font-size:12.5px;color:#8b96a5;font-family:Consolas,Menlo,monospace}
.d-sub{margin:10px 0 0;color:#3f4d5e;font-size:14.5px;line-height:1.75}
.d-sec{margin-top:18px;padding-top:16px;border-top:1px solid #edf0f5}
.d-sec.soft{background:#f6f9fd;border:1px solid #e3ecf7;border-radius:16px;padding:14px 16px;margin-top:16px}
.d-label{display:inline-block;font-size:12px;font-weight:800;color:var(--blue);letter-spacing:.12em;margin-bottom:8px}
.d-sec p{margin:0 0 6px;color:#3f4d5e;font-size:14px;line-height:1.8}
.d-sec p b{color:var(--ink);margin-right:6px}
.d-sec p b:after{content:"："}
.d-tags{display:flex;flex-wrap:wrap;gap:7px}
.d-tags i{font-style:normal;font-size:12.5px;font-weight:700;color:#2b3645;background:#f3f5f8;padding:6px 11px;border-radius:9px}
.d-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-top:20px;padding-top:18px;border-top:1px solid #edf0f5;flex-wrap:wrap}
.d-price{display:flex;align-items:baseline;gap:10px}
.d-price b{font-size:34px;color:var(--blue);letter-spacing:-.03em}
.d-price span{color:var(--muted);font-size:13.5px}
.d-foot .button{min-height:50px;padding:0 24px}

/* 购买弹窗 */
.steps-dot{display:flex;align-items:center;justify-content:center;gap:10px;margin:0 0 22px}
.steps-dot .dot{font-size:12.5px;font-weight:800;color:#98a3b1;padding:6px 14px;border-radius:999px;border:1px solid var(--line);background:#fafbfd}
.steps-dot .dot.active{color:#fff;background:var(--ink);border-color:var(--ink)}
.steps-dot .dot-line{width:30px;height:2px;background:var(--line)}
.modal .price{text-align:center;margin:12px 0 6px}
.modal .price .p{font-size:50px;font-weight:900;color:var(--blue);letter-spacing:-.03em}
.modal .price .p small{font-size:18px;font-weight:800;color:var(--ink)}
.modal .price s,.modal .price .ref{color:#98a3b1;margin-left:10px;font-size:15px;font-weight:600}
.modal .unlock{text-align:center;color:var(--muted);font-size:14px;margin-bottom:18px}
.modal .unlock b{color:var(--ink)}
.sel-skill{text-align:center;background:#f2f7ff;border:1px solid #d5e6ff;border-radius:12px;padding:10px;margin-bottom:16px;font-size:13.5px;color:#3b4a5e}
.sel-skill b{color:var(--blue)}
.pay-row{display:flex;gap:22px;align-items:center;justify-content:center;flex-wrap:wrap}
.qr{width:220px;flex:none;border-radius:16px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:0 14px 34px rgba(12,55,110,.1)}
.qr img{width:100%;height:auto}
.pay-info{flex:1;min-width:220px}
.pay-info .line{display:flex;gap:10px;margin-bottom:11px;font-size:14px;color:#3f4d5e}
.pay-info .line b{color:var(--ink)}
.pay-steps{margin:12px 0 0;padding:0;counter-reset:s}
.pay-steps li{position:relative;padding-left:30px;margin-bottom:10px;font-size:13.5px;color:#3f4d5e;list-style:none;line-height:1.6}
.pay-steps li::before{counter-increment:s;content:counter(s);position:absolute;left:0;top:1px;width:21px;height:21px;border-radius:50%;background:var(--blue);color:#fff;font-size:12px;font-weight:800;display:grid;place-items:center}
.wx-pill{display:inline-flex;align-items:center;gap:8px;padding:8px 14px;border-radius:999px;background:#eafaf0;color:#067a3e;font-weight:800;font-size:13px}
.modal .note{margin-top:18px;font-size:12.5px;color:#8b96a5;text-align:center;border-top:1px solid #edf0f5;padding-top:14px;line-height:1.7}
.modal .pane .button{width:100%;margin-top:20px}
.modal .back{display:block;margin:14px auto 0;background:none;border:0;color:var(--blue);font-weight:800;cursor:pointer;font-size:14px}

/* 返回顶部 */
.totop{position:fixed;right:26px;bottom:26px;z-index:60;width:46px;height:46px;border-radius:50%;background:var(--ink);color:#fff;border:0;font-size:18px;cursor:pointer;box-shadow:0 10px 24px rgba(11,18,32,.3);opacity:0;pointer-events:none;transition:.3s}
.totop.show{opacity:1;pointer-events:auto}

/* 入场动效 */
@media(prefers-reduced-motion:no-preference){
  @keyframes reveal-up{from{opacity:0;transform:translateY(26px)}to{opacity:1;transform:none}}
  .hero-copy>*{animation:reveal-up .82s cubic-bezier(.22,.61,.36,1) both}
  .hero-copy>*:nth-child(2){animation-delay:.07s}.hero-copy>*:nth-child(3){animation-delay:.14s}.hero-copy>*:nth-child(4){animation-delay:.2s}.hero-copy>*:nth-child(5){animation-delay:.26s}.hero-copy>*:nth-child(6){animation-delay:.32s}
  @keyframes marquee{from{transform:translateX(0)}to{transform:translateX(-50%)}}
  .strip-track{animation:marquee 70s linear infinite}
  .hero-strip:hover .strip-track{animation-play-state:paused}
}

/* ===== 响应式 ===== */
@media(max-width:1100px){
  .cat-grid{grid-template-columns:repeat(3,1fr)}
  .grid{grid-template-columns:repeat(3,1fr)}
}
@media(max-width:980px){
  .desktop-nav,.header-cta{display:none}
  .site-header{justify-content:space-between}
  .mobile-menu{display:block;position:relative}
  .mobile-menu summary{list-style:none;width:44px;height:44px;border:1px solid var(--line);border-radius:13px;display:grid;place-content:center;gap:5px;cursor:pointer}
  .mobile-menu summary::-webkit-details-marker{display:none}
  .mobile-menu summary span{width:19px;height:2px;background:#111}
  .mobile-menu nav{position:absolute;right:0;top:52px;width:220px;padding:12px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:0 18px 45px rgba(10,22,40,.15);display:grid}
  .mobile-menu nav a{padding:10px}
  .brand-cards,.who-grid,.steps{grid-template-columns:1fr 1fr}
  .grid{grid-template-columns:1fr 1fr}
  .cat-grid,.cat-grid.cols3{grid-template-columns:1fr 1fr}
  .compare,.store-head,.faq{grid-template-columns:1fr}
  .footer-inner{grid-template-columns:1fr}
  .footer-inner>div:last-child{text-align:left}
}
@media(max-width:640px){
  .shell{width:min(100% - 30px,1180px)}
  .site-header{height:64px;padding-inline:15px}
  .brand-logo{height:33px}.brand-logo+small{display:none}
  .hero{padding-block:56px 0}
  .hero h1{font-size:40px}
  .hero-actions{display:grid}
  .hero-price{flex-wrap:wrap;justify-content:center;border-radius:20px}
  .section{padding-block:70px}
  .brand-cards,.who-grid,.steps,.grid{grid-template-columns:1fr}
  .cat-grid,.cat-grid.cols2,.cat-grid.cols3{grid-template-columns:1fr}
  .brand-cards strong{font-size:26px}
  .tabs{border-radius:14px}
  .tab{padding:8px 12px;font-size:13px}
  .cta-pricebox{width:100%}
  .modal{padding:24px}
  .modal.detail{padding:22px 18px}
  .d-head{flex-direction:column;align-items:flex-start;padding-right:0}
  .d-head h3{font-size:21px}
  .d-foot .button{width:100%}
  .qr{width:200px}
}